A modular external infusion device that controls the rate a fluid is infusedinto anindividual's body, which includes a first module and a second module. Moreparticularly,the first module may be a pumping module that delivers a fluid, such as amedication, to apatient while the second module may be a programming module that allows a userto selectpump flow commands. The second module is removably attachable to the firstmodule.
